Artificial cage culture of sterile fly maggots

It only takes 12m nylon net for 12m22 purpose to make a net cage and prepare more than ten plates for mass production. 60000 flies are raised in a 2 square meter net cage, and 100g milk powder is fed every day. The daily production of fly maggots 12kg only needs 24kg wheat bran or 48kg livestock dung. The eggs laid every day are cultured in wheat bran or livestock manure. On the fourth day, maggots can be taken to feed Thailand tiger frog, stone frog, forest frog, pond lice, baby fish, soft-shelled turtle, scorpion, livestock and so on. Maggots can be produced every day, and it is very easy to raise maggots. There is no need for introduction after one introduction. All kinds of investment can be launched only 300-500 yuan, and the range can be large or small, depending on the necessity.

I. Survival habits of houseflies

When the room temperature is 20 ℃-30 ℃ and the relative humidity is 60%-80%, the housefly pupa develops in the last five days, from soft to hard, from beige, light brown and dark brown to black, and finally the adult fly breaks its shell from the front of the pupa. The adult fly that just crawled out could only crawl and could not fly. An hour later, the henchmen began to eat and drink. Adult flies are lively and active during the day and do not move at night. After three days of sexual maturity, males and females begin to mate and lay eggs. The peak spawning period is from 1 to 15 days old, and the spawning ability is lost at 25 days old. Fly eggs hatch into maggots from half a day to one day, and maggots are reared in livestock dung, as usual, they become pupae on the fifth day. A generation of flies, about 28 days. Temperature and feed nutrients of maggots have great influence on the growth and development of maggots. As usual, when the room temperature is in the range of 20 ℃-30 ℃, the higher the temperature and the thickness of feed, the faster the growth and development of maggots and the larger the pupa.

2. Breeding of species flies

Seed flies should be kept in the fly room. The size of the breeding fly room, according to the necessary production, can also be modified with the old house, the room is equipped with feeding racks, which are made of iron or wood. Fly cages made of nylon gauze net are arranged on each shelf, with 200cm long, wide 80cm wide and high 80cm. Seed flies are kept in cages with 60, 000 flies in each cage. A 35cm long zipper is installed in the middle of the fly cage for feeding, water and egg collection. 60, 000 adult flies are fed with 100g milk powder per day. The milk powder is placed on the appearance of wet wheat bran for the flies to feed and lay eggs in the wet wheat bran. Feed and water are changed once a day. The eggs are taken from the fly cage every morning and sent to the maggot room to raise maggots. The number of breeding flies spawning is the most from 8 am to 3 pm every day. Each batch of flies will be eliminated after spawning for 15 days, and the flies will be immersed in cages and died as livestock, poultry or aquatic feed, and then replaced with a new batch.

3. Breeding of fly maggots

The breeding of fly maggots can be done in a brick pond with a height of 12cm and an area of 1-5 square meters, or a plastic plate of bamboo and wood is used to raise maggots. A plastic plate of fertile maggots 1.5kg with a diameter of 50cm only needs 3kg wheat bran and can be used in the network for 3-4 days. The higher nutritional content of wheat bran is also slightly more expensive, just as it is commonly used to breed flies, while low-cost distiller's grains and bean dregs can be used as materials for commercial maggots. Such as using wheat bran as maggot material, lkg wheat bran can produce 0.5kg maggots, which need to be mixed with water, dry and humid to pinch out the water by hand, and it is appropriate to touch and disperse (water content 60% Mel 65%). If semi-dry and wet materials such as distiller's grains and bean dregs are used, they can be bred without adding water. Specific maggot to get: take out the spawning plate from the cage, pour fly eggs and wheat bran into the plate, join the maggot materials such as distiller's grains, bean dregs or wheat bran, and mix well. Too thin: fly eggs should not be exposed to the appearance of maggots, so as to avoid loss of water and loss of vitality. The thickness of maggot material is no higher than 40 ℃ and no less than 20 ℃ as the scale, as usual is 5-10cm, the maggot material with high temperature in summer should be thinner, on the contrary, it can be thickened properly when it is lower in winter. If livestock manure is best used after fermentation and deodorization with em bacteria, the ratio of materials to maggots, such as pig manure, is as common as 4-5kg to produce 1kg fresh maggots. No matter what kind of material is used to raise maggots, the dry humidity of maggots should be controlled at 60% 65%.

IV. The network of fly maggots

Taking advantage of the light-afraid characteristics of fly maggots, the network is held, and dung is used to pick up the feed surface of the maggot pond, and then the maggots drill down and take away the surface manure. This method is repeated many times, leaving a small amount of dung and a large number of fly maggots. After being washed, the evacuated maggots can be directly used to feed livestock and poultry, or they can be baked at 200-250 ℃ for 15-20 minutes and dried and stored. Note: if you accept the skill of factory breeding fly maggot earthworms, there is no need for automatic evacuation of artificial insect droppings.